Physics, 14.12.2020 01:00 aedmund1225
An engine has an ideal efficiency of 37%, and the cold reservoir is 15°C. What is the temperature of the hot reservoir? Convert the efficiency to a decimal before solving. Round the answer to the nearest tenth.
Answers: 2
Physics, 21.06.2019 20:00
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.
Answers: 1
Physics, 22.06.2019 04:00
Determine the maximum r-value of the polar equation r =3+3 cos 0
Answers: 3
Physics, 22.06.2019 11:10
Which situation will produce the greatest change of momentum
Answers: 2
Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
An engine has an ideal efficiency of 37%, and the cold reservoir is 15°C. What is the temperature of...
Mathematics, 22.10.2021 21:30
English, 22.10.2021 21:30
Mathematics, 22.10.2021 21:30
Mathematics, 22.10.2021 21:30
English, 22.10.2021 21:30
Mathematics, 22.10.2021 21:30
Biology, 22.10.2021 21:30
Computers and Technology, 22.10.2021 21:30
Mathematics, 22.10.2021 21:30
Mathematics, 22.10.2021 21:30
Mathematics, 22.10.2021 21:30
Mathematics, 22.10.2021 21:30